r/COVID19 is a subreddit with 601k members. The community frequently discusses covid, vaccine, covid 19, long covid, and vaccination, and the most common flair used is academic report, general, preprint, vaccine research, and discussion thread.
In December 2019, SARS-CoV-2 emerged in the city of Wuhan, China. This subreddit seeks to facilitate scientific discussion of this potential global public health threat. We have very strict rules. Please make sure to read them before posting or commenting. Moderators may lock or remove comments or posts at their discretion.
Popular Topics in r/COVID19
#1
Covid
294 posts
#2
Vaccine
107 posts
#3
Covid 19
52 posts
#4
Long Covid
48 posts
#5
Vaccination
24 posts
#6
Research
24 posts
#7
Sars Cov 2
17 posts
#8
Symptoms
16 posts
#9
Mrna
15 posts
#10
Lab Leak
13 posts
Flair Used in r/COVID19
#1
Academic Report
: "COVID-19 infection raises respiratory type 2 inflammatory disease risk, whereas vaccination is protective"
30 posts
#2
General
: "Will COVID boosters be made forever like the flu shots, creating a de facto "second" flu shot for the rest of human civilization?"
26 posts
#3
Preprint
: "The SARS-CoV-2 spike receptor-binding domain has evolved decreased inherent antigenicity in humans"
8 posts
#4
Vaccine Research
: "2024-2025 COVID-19 Vaccine and Major Adverse Cardiovascular Events Among US Veterans"
6 posts
#5
Discussion Thread
: "Monthly Scientific Discussion Thread - October 2026"
6 posts
#6
Academic Comment
: "Acute infection as a driver of chronic diseases and the unsung benefits of vaccination"
4 posts
#7
Molecular/Phylogeny
: "Loss-of-function mutation in Omicron variants reduces spike protein expression and attenuates SARS-CoV-2 infection"
3 posts
#8
Press Release
: "Tsimané and Moseten peoples of lowland Bolivia demonstrate an intriguing case of epidemiological resilience"
3 posts
#9
Diagnostics
: "Air sampling in team congregate spaces for early detection of respiratory virus threats at the 2026 FIFA World Cup"
1 post
#10
PPE/Mask Research
: "Silver bullet? The effect of mask mandates on COVID-19 cases"
1 post
Member Growth in r/COVID19
Yearly
+1k members(0.2%)
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About
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This page gives a focused view of r/COVID19, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: October 30, 2026